Beijing Air Quality: pm2.5

Beijing's average PM2.5 has continued to improve dramatically

2008(partial year)

2009

2010

2011

2012

2013

2014

2015

2016

2017

150

166

166

159

151

162

158

141

132

118

Not only was the best month in the last 10 years recorded in 2017 (August, average 90.1), but December (96.3) was the 3rd highest, and 9 months placed in the top 18 of the 115 recorded. The worst month (February, 126.9) came in 27th. November and December actually had a full 1/3 of their readings GREEN! See the monthly comparison chart

More information on my site can be found here, or visit my main site. That page also has links where you can get history updates or link to a graphics label that can be put on web pages. And, for ubuntu users, there is an app that shows the current API in the top bar.

Here is a story about a guy who has another, more qualitative way to show the data: every day he takes a picture of the same scene outside his window. His blog (in Chinese) is at http://weibo.com/u/1000481815.

Daily 2014 images

Daily 2015 images

Does not work well with IE, but does with Chrome, Firefox, and Opera - and I don't care about IE.